2026-05-01T04:24:13Z https://meral.edu.mm/oai

oai:meral.edu.mm:recid/311 2022-03-24T23:16:17Z 1582963788001:1582966668038 user-ydbu

Petrology of metamorphic rocks exposed in Mohauk area, Momeik Township, the boundary of Shan and Mandalay Region Tin Zaw Oo Nwe Ni Win The research area is situated about 7 miles from Momeik and 8 miles north west of Mogok in the boundary of Shan and Mandalay Region. Generally, the study area falls within the northern part of the Mogok Metamorphic Belt (MMB). It is bounded by King chaung in western part and the well-known left-lateral strike slip fault, Momeik Fault, in northern boundary of the study area. And thus, the main lithologies exposed are variety of Mogok Series, they are paragneiss and orthogneiss, many types of marbles and calc-silicates that host gem-quality rubies, sapphire and some quartzite. These rocks are intruded by peridotite, granites and various suite of syenites. According to mineralogical and textural evidences study area is affected regional metamorphism and, locally, contact metamorphism (metasomatism). On the basis of mineral assemblages, upper amphibolite to granulite facies has been recognized. The time of metamorphism of the study area can be assigned to Early Cretaceous to Early Eocene and peak- condition occurred in early Cretaceous to Oligocene and younger event would take later, probably in Early Miocene. 2019 http://hdl.handle.net/20.500.12678/0000000311 https://meral.edu.mm/records/311